Drop-In Anchor Anchor Diameter 3/8 in Overall Length 1 in Thread Size 1/4 In.-20 Thread Depth 0.375 in Thread Type Coarse Material Steel Finish Zinc Plated Flange Style Flush Drill Bit Size 3/8 in Minimum Hole Depth 1 in Ultimate Shear Strength (4 000 psi Concrete) 1 321 lb Maximum Ultimate Shear Strength 1 321 lb Ultimate Tension Strength (4 000 psi Concrete) 2 104 lb Maximum Ultimate Tension Strength 2 104 lb System of Measurement Inch Bolt or Rod Size 1/4 in